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Finding the Fourth Proportional to 150,174.81, 207,287.36 and 86,554.95

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Solution

The fourth proportional to 150,174.81, 207,287.36 and 86,554.95 is: 119,472.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,174.81 : 207,287.36 = 86,554.95 : x
  2. Step 2: Convert to fraction form
    150,174.81/207,287.36 = 86,554.95/x
  3. Step 3: Cross multiply
    150,174.81x = 207,287.36 × 86,554.95
  4. Step 4: Simplify right side
    150,174.81x = 17,941,746,647.66
  5. Step 5: Solve for x
    x = 17,941,746,647.66/150,174.81
  6. Step 6: Final answer
    x = 119,472.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.